How to get bit values from Byte?

Question

I have a byte say 1 byte of elements of 8.. How do i get the bit each values? for example, I want 16th bit value, 17th bit, 18th bit so on..

    byte[] _byte = new byte[8];

Answer 1

You can use BitArray() constructor BitArray((Byte[]) to get bits array from byte array. Use indexer on the bit array to get the required bit.

var bits = new BitArray(_byte);

Now bit 16 would be bits[15];

You can follow this example to understand how you can get the require bit.

byte[] _byte = new byte[3] {1,3,7};
var bits = new BitArray(_byte);
    for(int i=0; i < bits.Length; i++)
        Console.WriteLine(bits[i]);

Output:

True present 1 at bit and false present 0 at bit

First Byte Value = 1 = 00000001 (Binary)

True   = 1            0 bit index 
False  = 0            1 bit index   
False  = 0            2 bit index
False  = 0            3 bit index
False  = 0            4 bit index   
False  = 0            5 bit index
False  = 0            6 bit index
False  = 0            7 bit index  

Second Byte Value = 3 = 00000011 (Binary)

True   = 1            8 bit index 
True   = 1            9 bit index   
False  = 0            10 bit index
False  = 0            11 bit index
False  = 0            12 bit index   
False  = 0            13 bit index
False  = 0            14 bit index
False  = 0            15 bit index  

Third Byte Value = 7 = 00000111 (Binary)

True   = 1            16 bit index 
True   = 1            17 bit index   
True   = 1            18 bit index
False  = 0            19 bit index
False  = 0            20 bit index   
False  = 0            21 bit index
False  = 0            22 bit index
False  = 0            23 bit index